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Russia’s official ban of Telegram has spread, CEO Pavel Durov tweeted on Thursday, saying that Apple had been blocking updates to the encrypted messaging app on a global scale since Russian authorities ordered the company to remove Telegram from the App Store in April:

In April, Roskomnadzor – the Russian communications and technology watchdog – asked for court authority to block the app, effective immediately. It took the court only 18 minutes to approve the request.

Telegram users had managed to slip past the block, however. As Ars Technica reported at the time, users switched en masse to virtual private networks (VPNs) and proxy services to reach Telegram from their mobile devices and computers, or they just built their own services.

The situation exemplified what Durov had predicted when Russia demanded encryption keys: the outcome, he said, would be to prompt Telegram users to move to another app, be they terrorists or simply people wanting WhatsApp-like, encrypted messaging without being tied into Facebook.

Government censors responded by adding large swaths of IP addresses to the block list. ISPs also added “large chunks” of IP addresses associated with cloud services from Amazon and Google, as sources inside Russia told Ars.

The Verge reported that Russia’s ban was a “big, convoluted mess,” involving the block of 15.8 million IP addresses on Amazon and Google’s cloud platforms. A week after Russia started to block these IP addresses, Durov updated that number: it had hit nearly 18 million IP addresses, but Telegram was still going strong.

The reversal of the upgrade ban on Friday was greeted with an outpouring of thanks toward Apple, its CEO Tim Cook, and to Pavel.